There isn't, not being able to sprint felt like enough. We tried to add an additional malus to the running speed and it was way too hardcore. You jump a bit less high though. You're a sitting duck for any relatively good arrow player, that's should be enough punishment.

Most of the top tier players are good enough at dodging without sprint. The same people who are good at those arrows, are borderline completely unaffected by running out of stamina (granted they also rarely run out, but from my standpoint, I almost never get hit because I ran out of stamina, I get hit because I made a mistake and I was out of stamina but I feel as though I am never punished for my absolute poor stamina management)

Personally, I'd rather a MS debuff over a slower stamina gain since you don't get any stamina at all until it fills up. However, I also wasn't in any of your testings so you may have already experimented and determined that it wasn't a great fit

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